CN103979924A - Process for producing autoclaved brick - Google Patents
Process for producing autoclaved brick Download PDFInfo
- Publication number
- CN103979924A CN103979924A CN201410213858.6A CN201410213858A CN103979924A CN 103979924 A CN103979924 A CN 103979924A CN 201410213858 A CN201410213858 A CN 201410213858A CN 103979924 A CN103979924 A CN 103979924A
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- China
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- parts
- mud
- lime
- slag
- conditioning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a process for producing autoclaved bricks. The process comprises the following preparation steps: 1, taking sludge, coal ash, lime, silt and a coagulant, mixing and blending the raw materials to form blended sludge, and then dehydrating the blended sludge; 2, mixing the blended sludge produced from the step 1 with the coal ash, carbide slag or the lime, slag and a reinforcing agent, controlling wet basis water ratio at 16%-18%, and carrying out mixing treatment on weighed components to obtain a mixed material; 3, carrying out compression moulding on the mixed material to obtain formed bricks, standing the formed bricks for 3-4 hours, and then carrying out autoclaved curing. The process disclosed by the invention can be used for overcoming the defects of the prior art, can be used for recycling the sludge and the coal ash mining or beneficiation waste residues and enhancing the resource utilization ratio by producing in a low-energy consumption non-sintered mode.
Description
Technical field
The present invention relates to building material technical field, specifically belong to a kind of autoclaved brick production technique.
Background technology
Autoclave aerated concrete building block is the environmental protection project that state key is promoted.In batching with calcareous material (as cement, lime) and siliceous material (as sand, flyash, slag), add aluminium powder to make air entraining agent, through adding water stirring, casting, the expansion of getting angry, precuring cutting, then the porous silicate building block forming through autoclave curing.Along with the fast development of construction industry, construction material is produced a large amount of land occupation resources, and the contradiction between population, soil, environment is more and more outstanding, how to obtain new brick-making raw material, can make full use of resource again, has become key issue.
Summary of the invention
The object of this invention is to provide a kind of autoclaved brick production technique, overcome the deficiencies in the prior art, mud, flyash, mining or rejects can have been recycled, adopted the mode of less energy-consumption, non-sintering, produced, improved the utilization ratio of resource.
The technical solution used in the present invention is as follows:
An autoclaved brick production technique, comprises following preparation process: the first step, and by mud, flyash, lime, silt and coagulating agent feeding are mixed conditioning, form conditioning mud; Then described conditioning mud is dewatered; Second step, conditioning mud and flyash that the first step is produced, carbide slag or lime, slag, toughener, mixture control wet basis water ratio is 16%～18%, and each component taking is carried out to mixing treatment, obtains mixture;
The 3rd step, by described mixture compression moulding, obtains mould brick; To after the standing 3～4h of described mould brick, carry out steam press maintenance.
The described the first step, in conditioning mud, mud is 30-60 parts, flyash 20-30,20-30 parts, lime, 10-20 parts of silts, 1-5 parts, coagulating agent.
In described second step, 30-55 parts, conditioning mud, 15-30 parts of coal ash, 5-8 parts, carbide slag or the first lime, 25-35 parts, slag, 1-6 parts of tougheners.
In described steam press maintenance step, vapor pressure is 0.8-0.9 MPa, and vapor temperature is 100 ℃～200 ℃, and curing time is 3～4h.
Compared with the prior art, beneficial effect of the present invention is as follows:
The present invention can recycle mud, flyash, mining or rejects, adopts the mode of less energy-consumption, non-sintering, produces, and improves the utilization ratio of resource.
Embodiment
An autoclaved brick production technique, comprises following preparation process: the first step, and by mud, flyash, lime, silt and coagulating agent feeding are mixed conditioning, form conditioning mud; Then described conditioning mud is dewatered; Second step, conditioning mud and flyash that the first step is produced, carbide slag or lime, slag, toughener, mixture control wet basis water ratio is 16%～18%, and each component taking is carried out to mixing treatment, obtains mixture;
The 3rd step, by described mixture compression moulding, obtains mould brick; To after the standing 3～4h of described mould brick, carry out steam press maintenance.
The described the first step, in conditioning mud, mud is 30-60 parts, flyash 20-30,20-30 parts, lime, 10-20 parts of silts, 1-5 parts, coagulating agent.
In described second step, 30-55 parts, conditioning mud, 15-30 parts of coal ash, 5-8 parts, carbide slag or the first lime, 25-35 parts, slag, 1-6 parts of tougheners.
In described steam press maintenance step, vapor pressure is 0.8-0.9 MPa, and vapor temperature is 100 ℃～200 ℃, and curing time is 3～4h.
Claims (4)
1. an autoclaved brick production technique, is characterized in that: comprise following preparation process: the first step, and by mud, flyash, lime, silt and coagulating agent feeding are mixed conditioning, form conditioning mud; Then described conditioning mud is dewatered;
Second step, conditioning mud and flyash that the first step is produced, carbide slag or lime, slag, toughener, mixture control wet basis water ratio is 16%～18%, and each component taking is carried out to mixing treatment, obtains mixture;
The 3rd step, by described mixture compression moulding, obtains mould brick; To after the standing 3～4h of described mould brick, carry out steam press maintenance.
2. a kind of autoclaved brick production technique according to claim 1, is characterized in that: the described the first step, in conditioning mud, mud is 30-60 parts, flyash 20-30,20-30 parts, lime, 10-20 parts of silts, 1-5 parts, coagulating agent.
3. a kind of autoclaved brick production technique according to claim 1, is characterized in that: in described second step, nurse one's health 30-55 parts, mud, 15-30 parts of coal ash, 5-8 parts, carbide slag or the first lime, 25-35 parts, slag, 1-6 parts of tougheners.
4. a kind of autoclaved brick production technique according to claim 1, is characterized in that: in described steam press maintenance step, vapor pressure is 0.8-0.9 MPa, and vapor temperature is 100 ℃～200 ℃, and curing time is 3～4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213858.6A CN103979924A (en) | 2014-05-20 | 2014-05-20 | Process for producing autoclaved brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213858.6A CN103979924A (en) | 2014-05-20 | 2014-05-20 | Process for producing autoclaved brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103979924A true CN103979924A (en) | 2014-08-13 |
Family
ID=51272129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410213858.6A Pending CN103979924A (en) | 2014-05-20 | 2014-05-20 | Process for producing autoclaved brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103979924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130352A (en) * | 2015-07-08 | 2015-12-09 | 安徽省溜口新型建筑材料有限公司 | Various-minerals compounded autoclaved brick |
| CN105967752A (en) * | 2016-05-09 | 2016-09-28 | 武汉理工大学 | Preparation method of sheet materials with low pollution by using city sludge and calcium carbide slags |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449796A (en) * | 2013-07-05 | 2013-12-18 | 宇星科技发展(深圳)有限公司 | Sludge autoclaved brick and preparation method thereof |
-
2014
- 2014-05-20 CN CN201410213858.6A patent/CN103979924A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449796A (en) * | 2013-07-05 | 2013-12-18 | 宇星科技发展(深圳)有限公司 | Sludge autoclaved brick and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130352A (en) * | 2015-07-08 | 2015-12-09 | 安徽省溜口新型建筑材料有限公司 | Various-minerals compounded autoclaved brick |
| CN105967752A (en) * | 2016-05-09 | 2016-09-28 | 武汉理工大学 | Preparation method of sheet materials with low pollution by using city sludge and calcium carbide slags |
| CN105967752B (en) * | 2016-05-09 | 2018-11-30 | 武汉理工大学 | Utilize the method for municipal sludge and carbide slag preparation low pollution plate |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140813 |